Patent US2997590A successfully refreshed from Google Patents.
Patent US3839477A successfully refreshed from Google Patents.
US3839477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydroalkylation process
Assignee: Texaco Inc
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Filing: 1973-06-06
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Granted: 1974-10-01
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Expires: 1993-06-06
Abstract
Abstract 1. THE METHOD OF HYDROALKYLATING A CHARGE MONONUCLEAR AROMATIC HYDROCARBON WITH A HYDROALKYLATING QUANTITY OF HYDROGEN WHICH COMPRISES PASSING SAID CHARGE HYDROCARBON AND SAID HYDROALKYLATION ING QUANTITY OF HYDROGEN THROUGH A HYDROALKYLATION OPERATION AT HYDROALKYLATING CONDITIONS IN THE PRESENCE OF A HYDROALKYLATION CATALYST CONTAINING (A) A CRYSTALLINE ALUMINOSILICATE, AT LEAST A PORTION OF THE METAL CATION CONTENT OF WHICH IS RARE EARTH METAL INTRODCED BY BASE EXCHANGE AND (B) COBALT OR NICKEL THEREBY FORMING A PRODUCT STREAM CONTAINING HYDROALKYLATE; AND RECOVERING SAID PRODUCT STREAM CONTAINING HYDROALKYLATE.
Inventors
- 👤 A Arkell
- 👤 R Suggitt
- 👤 J Crone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:39
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/74; C07C2529/00; C07C2529/04; C07C2529/06; C07C2529/08; C07C2529/10; C07C2529/14; C07C2601/00; C07C2601/12; C07C2601/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
THE METHOD OF HYDROALKYLATING A CHARGE MONONUCLEAR AROMATIC HYDROCARBON WITH A HYDROALKYLATING QUANTITY OF HYDROGEN WHICH COMPRISES PASSING SAID CHARGE HYDROCARBON AND SAID HYDROALKYLATION ING QUANTITY OF HYDROGEN THROUGH A HYDROALKYLATION OPERATION AT HYDROALKYLATING CONDITIONS IN THE PRESENCE OF A HYDROALKYLATION CATALYST CONTAINING (A) A CRYSTALLINE ALUMINOSILICATE, AT LEAST A PORTION OF THE METAL CATION CONTENT OF WHICH IS RARE EARTH METAL INTRODCED BY BASE EXCHANGE AND (B) COBALT OR NICKEL THEREBY FORMING A PRODUCT STREAM CONTAINING HYDROALKYLATE; AND RECOVERING SAID PRODUCT STREAM CONTAINING HYDROALKYLATE.
Claim 2
Independent Claim
85 words
THE METHOD OF HYDROALKYLATING A CHARGE MONONUCLEAR AROMATIC HYDROCARBON WITH A HYDROALKYLATING QUANTITY OF HYDROGEN WHICH COMPRISES PASSING SAID CHARGE HYDROCARBON AND SAID HYDROALKYLATION ING QUANTITY OF HYDROGEN THROUGH A HYDROALKYLATION OPERATION AT HYDROALKYLATING CONDITIONS IN THE PRESENCE OF A HYDROALKYLATION CATALYST CONTAINING (A) A CRYSTALLINE ALUMINOSILICATE, AT LEAST A PORTION OF THE METAL CATION CONTENT OF WHICH IS RARE EARTH METAL INTRODCED BY BASE EXCHANGE AND (B) COBALT OR NICKEL THEREBY FORMING A PRODUCT STREAM CONTAINING HYDROALKYLATE; AND RECOVERING SAID PRODUCT STREAM CONTAINING HYDROALKYLATE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-30 | 1978-04-01 | 1978-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-30 | 1982-04-01 | 1982-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-30 | 1986-04-01 | 1986-10-01 | $7700.00 | Window Closed / Lapsed |